Concrete-filled steel tubular column and reinforced concrete beam joint and steel corbel and construction method thereof

The invention provides a concrete filled steel tubular column and reinforced concrete beam joint and a steel corbel and a construction method thereof. The steel corbel comprises a plurality of arc-shaped structures, and when the arc-shaped structures are sequentially welded to the circular concrete-filled steel tubular column in the circumferential direction and every two adjacent arc-shaped structures are connected in a welded mode, the arc-shaped structures can define an annular support surrounding the circular concrete-filled steel tubular column; the annular support is provided with four orientation parts arranged in a cross shape, every two opposite orientation parts form a set of orientation parts, at least one orientation part is used for welding and fixing a beam longitudinal bar of the reinforced concrete beam, and all the orientation parts in the at least one set of orientation parts of the annular support are provided with receding grooves. When a platform formwork which comprises a plurality of ve